Solar Projector: This isn’t anything I invented but in all modesty it is the lightest, safest, best image in any solar projector in a 4 inch size bar none. It is simply a plano-convex lens with a very long focal length (80+ feet) which gives it a large image scale and freedom from color aberration. It’s absolutely safe because the image is never concentrated to cause burns. It is fed by an optical flat and mounts on a camera tripod weighing only 2.2 lbs.. It’s 8 inch diameter solar image is by far the best for group viewing of the sun. Check my yard sale for availability. There is no better solar projector for public viewing an eclipse.
Check out my You-Tube video https://www.youtube.com/watch?v=pgQOsK6RdC4